package com.ruoyi.framework.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.annotation.web.configurers.ExpressionUrlAuthorizationConfigurer;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.web.authentication.logout.LogoutFilter;
import org.springframework.web.filter.CorsFilter;
import com.ruoyi.framework.config.properties.PermitAllUrlProperties;
import com.ruoyi.framework.security.filter.JwtAuthenticationTokenFilter;
import com.ruoyi.framework.security.handle.AuthenticationEntryPointImpl;
import com.ruoyi.framework.security.handle.LogoutSuccessHandlerImpl;

/**
 * spring security配置
 *
 * @author ruoyi
 */
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
public class SecurityConfig
{
    /**
     * 强散列哈希加密实现
     */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder()
    {
        return new BCryptPasswordEncoder();
    }

    @Configuration
    static class SysSecurityConfig extends WebSecurityConfigurerAdapter {

        /**
         * 自定义用户认证逻辑
         */
        @Autowired
        private UserDetailsService userDetailsService;

        /**
         * 认证失败处理类
         */
        @Autowired
        private AuthenticationEntryPointImpl unauthorizedHandler;

        /**
         * 退出处理类
         */
        @Autowired
        private LogoutSuccessHandlerImpl logoutSuccessHandler;

        /**
         * token认证过滤器
         */
        @Autowired
        private JwtAuthenticationTokenFilter authenticationTokenFilter;

        /**
         * 跨域过滤器
         */
        @Autowired
        private CorsFilter corsFilter;

        @Autowired
        private BCryptPasswordEncoder bCryptPasswordEncoder;


        /**
         * 允许匿名访问的地址
         */
        @Autowired
        private PermitAllUrlProperties permitAllUrl;

        /**
         * 解决 无法直接注入 AuthenticationManager
         *
         * @return
         * @throws Exception
         */
        @Bean
        @Override
        public AuthenticationManager authenticationManagerBean() throws Exception
        {
            return super.authenticationManagerBean();
        }

        /**
         * anyRequest          |   匹配所有请求路径
         * access              |   SpringEl表达式结果为true时可以访问
         * anonymous           |   匿名可以访问
         * denyAll             |   用户不能访问
         * fullyAuthenticated  |   用户完全认证可以访问（非remember-me下自动登录）
         * hasAnyAuthority     |   如果有参数，参数表示权限，则其中任何一个权限可以访问
         * hasAnyRole          |   如果有参数，参数表示角色，则其中任何一个角色可以访问
         * hasAuthority        |   如果有参数，参数表示权限，则其权限可以访问
         * hasIpAddress        |   如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问
         * hasRole             |   如果有参数，参数表示角色，则其角色可以访问
         * permitAll           |   用户可以任意访问
         * rememberMe          |   允许通过remember-me登录的用户访问
         * authenticated       |   用户登录后可访问
         */
        @Override
        protected void configure(HttpSecurity httpSecurity) throws Exception
        {
            // 注解标记允许匿名访问的url
            ExpressionUrlAuthorizationConfigurer<HttpSecurity>.ExpressionInterceptUrlRegistry registry = httpSecurity.authorizeRequests();
            permitAllUrl.getUrls().forEach(url -> registry.antMatchers(url).permitAll());

            httpSecurity
                    // CSRF禁用，因为不使用session
                    .csrf().disable()
                    // 禁用HTTP响应标头
                    .headers().cacheControl().disable().and()
                    // 认证失败处理类
                    .exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()
                    // 基于token，所以不需要session
                    .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
                    // 过滤请求
                    .authorizeRequests()
                    // 对于登录login 注册register 验证码captchaImage 允许匿名访问
                    .antMatchers("/login", "/register", "/captchaImage").permitAll()
                    // 静态资源，可匿名访问
                    .antMatchers(HttpMethod.GET, "/", "/*.html", "/**/*.html", "/**/*.css", "/**/*.js", "/profile/**").permitAll()
                    .antMatchers("/swagger-ui.html", "/swagger-resources/**", "/webjars/**", "/*/api-docs", "/druid/**").permitAll()
                    // 除上面外的所有请求全部需要鉴权认证
                    .anyRequest().authenticated()
                    .and()
                    .headers().frameOptions().disable();
            // 添加Logout filter
            httpSecurity.logout().logoutUrl("/logout").logoutSuccessHandler(logoutSuccessHandler);
            // 添加JWT filter
            httpSecurity.addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
            // 添加CORS filter
            httpSecurity.addFilterBefore(corsFilter, JwtAuthenticationTokenFilter.class);
            httpSecurity.addFilterBefore(corsFilter, LogoutFilter.class);
        }


        /**
         * 身份认证接口
         */
        @Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception
        {
            auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder);
        }
    }

    @Configuration
    @Order(1)
    static class AppSecurityConfig extends WebSecurityConfigurerAdapter {

        /**
         * 自定义用户认证逻辑
         */
        @Autowired
        private UserDetailsService userDetailsService;

        /**
         * 认证失败处理类
         */
        @Autowired
        private AuthenticationEntryPointImpl unauthorizedHandler;

        /**
         * 退出处理类
         */
        @Autowired
        private LogoutSuccessHandlerImpl logoutSuccessHandler;

        /**
         * token认证过滤器
         */
        @Autowired
        private JwtAuthenticationTokenFilter authenticationTokenFilter;

        /**
         * 跨域过滤器
         */
        @Autowired
        private CorsFilter corsFilter;

        @Autowired
        private BCryptPasswordEncoder bCryptPasswordEncoder;


        /**
         * 允许匿名访问的地址
         */
        @Autowired
        private PermitAllUrlProperties permitAllUrl;

        @Override
        public AuthenticationManager authenticationManagerBean() throws Exception
        {
            return super.authenticationManagerBean();
        }

        /**
         * anyRequest          |   匹配所有请求路径
         * access              |   SpringEl表达式结果为true时可以访问
         * anonymous           |   匿名可以访问
         * denyAll             |   用户不能访问
         * fullyAuthenticated  |   用户完全认证可以访问（非remember-me下自动登录）
         * hasAnyAuthority     |   如果有参数，参数表示权限，则其中任何一个权限可以访问
         * hasAnyRole          |   如果有参数，参数表示角色，则其中任何一个角色可以访问
         * hasAuthority        |   如果有参数，参数表示权限，则其权限可以访问
         * hasIpAddress        |   如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问
         * hasRole             |   如果有参数，参数表示角色，则其角色可以访问
         * permitAll           |   用户可以任意访问
         * rememberMe          |   允许通过remember-me登录的用户访问
         * authenticated       |   用户登录后可访问
         */
        @Override
        protected void configure(HttpSecurity httpSecurity) throws Exception
        {
            // 注解标记允许匿名访问的url
            ExpressionUrlAuthorizationConfigurer<HttpSecurity>.ExpressionInterceptUrlRegistry registry = httpSecurity.authorizeRequests();
            permitAllUrl.getUrls().forEach(url -> registry.antMatchers(url).permitAll());

            httpSecurity.antMatcher("/app/**")
                    // CSRF禁用，因为不使用session
                    .csrf().disable()
                    // 禁用HTTP响应标头
                    .headers().cacheControl().disable().and()
                    // 认证失败处理类
                    .exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()
                    // 基于token，所以不需要session
                    .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
                    // 过滤请求
                    .authorizeRequests()
                    // 对于登录login 注册register 验证码captchaImage 允许匿名访问
                    .antMatchers("/app/login").permitAll()
                    // 静态资源，可匿名访问
//                    .antMatchers(HttpMethod.GET, "/", "/*.html", "/**/*.html", "/**/*.css", "/**/*.js", "/profile/**").permitAll()
//                    .antMatchers("/swagger-ui.html", "/swagger-resources/**", "/webjars/**", "/*/api-docs", "/druid/**").permitAll()
                    // 除上面外的所有请求全部需要鉴权认证
                    .anyRequest().authenticated()
                    .and()
                    .headers().frameOptions().disable();
            // 添加Logout filter
            httpSecurity.logout().logoutUrl("/app/logout").logoutSuccessHandler(logoutSuccessHandler);
            // 添加JWT filter
            httpSecurity.addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
            // 添加CORS filter
            httpSecurity.addFilterBefore(corsFilter, JwtAuthenticationTokenFilter.class);
            httpSecurity.addFilterBefore(corsFilter, LogoutFilter.class);
        }


        /**
         * 身份认证接口
         */
        @Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception
        {
            auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder);
        }
    }
}
